About 290 on Firefox, and another 124 on Chrome. 1.5 GB of ram allocated for FF, no idea with Chrome, but would estimate 2 GB since not all of FF's are currently loaded (set on don't load until switch to). 24 GB of ram on this computer, so I manage, but you don't need to tell me I have a problem... That's just this computer mind you, they tend to pile up on other ones as well...